Study on stress variation law of hard concretion coal under the action of pick based on DYNA

Xunan Liu; Yanpeng Zhang; Jie Wang; Hongye Li; Lianwei Ma

doi:10.15446/dyna.v90n226.107106

Publicado

2023-06-13

Study on stress variation law of hard concretion coal under the action of pick based on DYNA

Estudio sobre la ley de variación del estrés del carbón de concreción dura bajo la acción del pico basado en DYNA

DOI:

https://doi.org/10.15446/dyna.v90n226.107106

Palabras clave:

hard concretion; coal; finite element analysis; stress variation law; similarity theory (en)
concreción dura; carbón; análisis de elementos finitos; ley de variación de estrés; teoría de la similitude (es)

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Autores/as

Xunan Liu School of Mechanical Engineering, Liaoning Technical University, Fuxin, China https://orcid.org/0000-0003-0737-2475
Yanpeng Zhang School of Mechanical Engineering, Liaoning Technical University, Fuxin, China https://orcid.org/0009-0005-3774-2723
Jie Wang School of Mechanical Engineering, Liaoning Technical University, Fuxin, China https://orcid.org/0000-0003-3700-1261
Hongye Li School of Mechanical Engineering, Liaoning Technical University, Fuxin, China https://orcid.org/0000-0001-5180-1754
Lianwei Ma CCTEG Taiyuan Research Institute, Taiyuan, Shanxi, China https://orcid.org/0009-0003-6827-1077

Resumen (en)
Resumen (es)

Modeling and simulation of pick cutting hard concretion coal process are taken as a key link to analyze the stress variation law. To this aim, the properties of hard concretion coal in the target mining area were tested. Related model with high-quality common grid was generated using the mapping method through Hypermesh. the coal breaking process was performed using LS-DYNA, and the stress variation law of coal and hard concretion was analyzed. The results showed that the closer the action position to the middle point of long axis of hard concretion, the greater stress peak would be generated, stripping of the pick occurred when it acted on the 2/5 and 1/2 positions of the long axis. Using similarity theory, the model of hard concretion coal was made and the pick cutting experiment was performed. Compared with simulation torque result, the correctness of modeling and simulation has been verified.

El modelado y la simulación durante el corte de hulla son elementos clave para analizar las leyes de variación de las tensiones. Con este fin, se realizaron pruebas de rendimiento de carbón duro de la mina objetivo. Generación de modelos correlacionados con mallas comunes de alta calidad utilizando el método de mapeo de Hypermesh. LS-DYNA ha sido utilizado para analizar las fracturas de pico de carbón y las tensiones en el carbón y el hormigón. Los resultados muestran que cuanto más cerca del centro del eje mayor sea el pico de tensión. Los bloques duros se desprenden cuando hachas se encuentran en 1/2 y 2/5 del eje mayor. Se ha desarrollado un modelo de carbón endurecido utilizando la teoría de la similitud y se ha realizado un experimento de corte por pico. La corrección del modelado y la simulación se verificó mediante la comparación con los resultados de simulación.

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Cómo citar

IEEE

[1]

X. Liu, Y. Zhang, J. Wang, H. Li, y L. Ma, «Study on stress variation law of hard concretion coal under the action of pick based on DYNA», DYNA, vol. 90, n.º 226, pp. 146–155, may 2023.

ACM

[1]

Liu, X., Zhang, Y., Wang, J., Li, H. y Ma, L. 2023. Study on stress variation law of hard concretion coal under the action of pick based on DYNA. DYNA. 90, 226 (may 2023), 146–155. DOI:https://doi.org/10.15446/dyna.v90n226.107106.

ACS

(1)

Liu, X.; Zhang, Y.; Wang, J.; Li, H.; Ma, L. Study on stress variation law of hard concretion coal under the action of pick based on DYNA. DYNA 2023, 90, 146-155.

APA

Liu, X., Zhang, Y., Wang, J., Li, H. & Ma, L. (2023). Study on stress variation law of hard concretion coal under the action of pick based on DYNA. DYNA, 90(226), 146–155. https://doi.org/10.15446/dyna.v90n226.107106

ABNT

LIU, X.; ZHANG, Y.; WANG, J.; LI, H.; MA, L. Study on stress variation law of hard concretion coal under the action of pick based on DYNA. DYNA, [S. l.], v. 90, n. 226, p. 146–155, 2023. DOI: 10.15446/dyna.v90n226.107106. Disponível em: https://revistas.unal.edu.co/index.php/dyna/article/view/107106. Acesso em: 16 mar. 2026.

Chicago

Liu, Xunan, Yanpeng Zhang, Jie Wang, Hongye Li, y Lianwei Ma. 2023. «Study on stress variation law of hard concretion coal under the action of pick based on DYNA». DYNA 90 (226):146-55. https://doi.org/10.15446/dyna.v90n226.107106.

Harvard

Liu, X., Zhang, Y., Wang, J., Li, H. y Ma, L. (2023) «Study on stress variation law of hard concretion coal under the action of pick based on DYNA», DYNA, 90(226), pp. 146–155. doi: 10.15446/dyna.v90n226.107106.

MLA

Liu, X., Y. Zhang, J. Wang, H. Li, y L. Ma. «Study on stress variation law of hard concretion coal under the action of pick based on DYNA». DYNA, vol. 90, n.º 226, mayo de 2023, pp. 146-55, doi:10.15446/dyna.v90n226.107106.

Turabian

Liu, Xunan, Yanpeng Zhang, Jie Wang, Hongye Li, y Lianwei Ma. «Study on stress variation law of hard concretion coal under the action of pick based on DYNA». DYNA 90, no. 226 (mayo 25, 2023): 146–155. Accedido marzo 16, 2026. https://revistas.unal.edu.co/index.php/dyna/article/view/107106.

Vancouver

1.

Liu X, Zhang Y, Wang J, Li H, Ma L. Study on stress variation law of hard concretion coal under the action of pick based on DYNA. DYNA [Internet]. 25 de mayo de 2023 [citado 16 de marzo de 2026];90(226):146-55. Disponible en: https://revistas.unal.edu.co/index.php/dyna/article/view/107106

Descargar cita

CrossRef Cited-by

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1. Xunan Liu, Yiming Liu, Faquan Li, Yanpeng Zhang, Jianyong Wang, Lianwei Ma. (2025). Optimization of kinematic parameters of continuous miner based on LS-DYNA simulation analysis and NSGA-II algorithm. Results in Engineering, 26, p.105235. https://doi.org/10.1016/j.rineng.2025.105235.

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